<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1">
    <tr >
        <th><input type="checkbox">全选</th>
        <th>发件人</th>
        <th>邮件名称</th>
        <th>邮件附属信息</th>
    </tr>
    <tr>
        <td><input type="checkbox"></td>
        <td>张三11</td>
        <td>我是邮箱11</td>
        <td>我是附件信息11</td>
    </tr>
    <tr>
        <td><input type="checkbox"></td>
        <td>张三22</td>
        <td>我是邮箱22</td>
        <td>我是附件信息22</td>
    </tr>
    <tr>
        <td><input type="checkbox"></td>
        <td>张三33</td>
        <td>我是邮箱33</td>
        <td>我是附件信息33</td>
    </tr>
    <tr>
        <td><input type="checkbox"></td>
        <td>张三44</td>
        <td>我是邮箱44</td>
        <td>我是附件信息44</td>
    </tr>
    <tr>
        <td><input type="checkbox">全选</td>
        <td colspan="3">
            <table>
                <tr >
                    <td ><input type="button" value="全选"></td>
                    <td><input type="button" value="取消全选"></td>
                    <td><input type="button" value="反选"></td>
                    <td ><input type="button" value="删除所选附件"></td>
                </tr>
            </table>
        </td>


    </tr>
</table>
</body>
</html>